Life in the cosmos

Enceladus's ocean plumes

2005 to 2023 · Saturn's moon

Worth watchingCredible data, genuinely open. The cases that could move the meter.

The claim

"Saturn's icy moon has everything life needs."

Where the idea comes from

NASA's Cassini spacecraft discovered geysers at the south pole in 2005 and flew through them repeatedly until 2015.

Saturn's moon Enceladus with plumes of ice and vapour rising from its south pole (Cassini).
Saturn's moon Enceladus with plumes of ice and vapour rising from its south pole (Cassini). Photo: NASA/JPL, Public domain, via Wikimedia Commons

What the evidence shows

  1. The plumes come from a global salty ocean under the ice.
  2. Cassini detected salts, organic molecules, ammonia and molecular hydrogen, a possible energy source for microbes like those at Earth's deep-sea vents.
  3. In 2023 researchers reported phosphates in ice grains from the plumes, the last of the six key elements for life (CHNOPS) to be found there.
  4. These are ingredients and energy, not life itself.

What is still open

No mission to look for life at Enceladus is yet approved. Europa Clipper will reach Jupiter's moon Europa, another ocean world, in 2030.

Our verdict

Worth watching A prime place to look, not evidence of life.

Sources

Checked 31 October 2026. Spotted a newer source? Tell us.

Advertisement

More from Life in the cosmos

See all